Name: dsC58869 Date: 09/09/99



The java.awt.ComponentOrientation class is incorrectly deserialized
under java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-D)
when it has been serialized with JDK1.2.2.

Here is a minimized test:
--- ComponentOrientationTest.java ---
import java.awt.*;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

public class ComponentOrientationTest {

  public static void main(String args[]) {

    ComponentOrientation compOrient;

    if (args.length != 2) {

      System.out.println("There should be exactly two arguments");

    } else {

      String filepath = args[1] + "ComponentOrientation.ser";

      if (args[0].equals("write")) {

        compOrient = ComponentOrientation.LEFT_TO_RIGHT;

        ObjectOutputStream stream = null;

        try {

          stream = new ObjectOutputStream(
            new FileOutputStream(filepath)
          );


        } catch(IOException e) {
          System.out.println("Couldn't create " + filepath + " : " + e);
          System.exit(1);
        }

        try {

          stream.writeObject(compOrient);
          stream.close();

        } catch(IOException e) {
          System.out.println("Couldn't write to " + filepath + " : " + e);
          System.exit(1);
        }

        System.out.println("ComponentOrientation written successfully");

      } else if (args[0].equals("read")) {

        ObjectInputStream stream = null;

        try {

          stream = new ObjectInputStream(
            new FileInputStream(filepath)
          );

        } catch(IOException e) {
          System.out.println("Test failed: " + filepath + " not found");
          System.exit(1);
        }

        try {

          compOrient = (ComponentOrientation)stream.readObject();

        } catch(ClassNotFoundException e) {
          System.out.println("Test failed:" + e);
          System.exit(1);
        } catch(IOException e) {
          System.out.println(
            "Test failed: couldn't read from" + filepath + " : " + e
          );
          System.exit(1);
        }

        System.out.println("Test passed");

      } else {
        System.out.println(
          "The first argument should be either 'read' or 'write'"
        );
        System.exit(1);
      }

    }

    System.exit(0);

  }

}
--- Writing the test data under JDK 1.3beta-O-release ----
%java ComponentOrientationTest write tmp
ComponentOrientation written successfully

--- Reading the test data under JDK 1.3beta-O-release ----
%java ComponentOrientationTest read tmp
Test passed

--- Reading the test data under Windows platform ---
java ComponentOrientationTest read tmp
Test failed: couldn't read fromtmpComponentOrientation.ser : java.io.InvalidClassException: java.awt.ComponentOrientation; Local class not compatible: stream classdesc serialVersionUID=-4113291392143563828 local class serialVersionUID=-1497425788611587381


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